Index exceeds Array Bounds - Help!

Hello everyone - I receive the error "Index exceeds array bounds" , but I can't solve the Problem.

I attache the file, and this is the Line which causes the error:

Pre_Time(idx_loopi).Durchschnittswert(counter,idx_act_Channel_Time)= mean(test(idx_loopi).Channels(idx_act_Channel_Time).Data(idxStart:i));

[David H]

I think the reason you are struggling to find the cause of the error is there are so many indexes used in that one line.

Maybe split it into multiple lines just for debug, something like

v1 = Pre_Time(idx_loopi)

v2 = v1.Durchschnittswert(counter,idx_act_Channel_Time);

v3 = test(idx_loopi)

v4 = v3.Channels(idx_act_Channel_Time)

v5 = v4.Data(idxStart:i));

See which gives the error

Also the for loop over "idx_loopi" appears to be over by the time you call this line, do you mean to use this index variable?

[Malte Räuchle]

Hey David, thanks for your response. That was a good advice to split it into multiple lines. I only get an error @ v2 . But I don't get close to what could be a good solution.

[Malte Räuchle]

And yes I want to use the index "idx_loopi" .

Answer 1

[Steven Lord]

Set an error breakpoint. Run your code. When MATLAB reaches the error breakpoint, check the size of v1.Durchschnittswert and the value of the counter variable. From that error message v1.Durchschnittswert will have ten rows and counter will be greater than 10.

Look back in your code to ensure that counter is being set correctly and v1.Durchschnittswert is being created and updated correctly. Did you delete a row from that variable when you didn't expect to, or did you assign into the wrong row of it (overwriting values instead of growing it?)

Once you know where the error occurs and understand what's going on, set breakpoints earlier in your code and step through, watching for the conditions that cause the error to appear.

[Malte Räuchle]

I set an error breakpoint and from the error PreTime.Durchschnittswert is a 1x1 struct and the counter is 1. That means that the counter is not set correctly, right?

I tried to change the position of it but my approaches do not seem to work. Any ideas?